Related Clues:

• Walk on
• Rated (anag.)
• Put your foot down to obtain new trade
• Part of tyre
• Aspect of tyre trade in trouble
• Walk on as one introducing talk show
• Tire's "footprint"
• Athletic shoe part
• Sole clue for a detective?
• Sneaker-sole pattern
• Part of tyre that's wearing? Time to consult a manual, perhaps
• Soccer shoe feature
• Point on the field?
• Shoe gripper
• Trade reforms going in step